❄️ Official Rankings
10 Best HVAC in Mason City, IA (September 2026)
We compared 10 hvac serving Mason City and Cerro Gordo County, Iowa, and ranked the top providers by verified reviews, ratings, and local reputation — 1,413 customer reviews in all.
The 10 listed below hold an average rating of 4.8 out of 5, led by Overhead Door Company of Mason City. Updated for September 2026.
- HVAC ranked
- 10
- Average rating
- 4.8★
- Reviews analyzed
- 1,413
- Area code
- 641
Overhead Door Company of Mason City
⭐ 4.9 · 807 reviews
225 18th St SE, Mason City, IA 50401
Johnson Heating & Air Conditioning LLC
⭐ 4.8 · 193 reviews
1405 S Taft Ave B, Mason City, IA 50401
SERVPRO of Mason City
⭐ 4.8 · 157 reviews
2930 4th St SW, Mason City, IA 50401
North Central Mechanical Services
⭐ 4.6 · 87 reviews
2601 15th St SW, Mason City, IA 50401
Air Care, Inc
⭐ 4.8 · 18 reviews
1302 N Federal Ave, Mason City, IA 50401
Gustave A Larson Company
⭐ 4.6 · 17 reviews
802 S Jefferson Ave, Mason City, IA 50401
HVAC listed here serve Mason City, Cerro Gordo County, and nearby ZIP codes including 50401, 50402.